Full English Description for Cisco ASR 902U

1. Official Short Order Description (Datasheet Standard Format)

ASR 902U: Cisco ASR 900U Series 2RU Shallow-Depth Modular Carrier-Grade Aggregation Services Router, upgraded unified U-series hardware platform with single hot-swappable A900U-RSP2A Route Switch Processor supporting 64 Gbps / 128 Gbps aggregate forwarding throughput, four OIR-capable Interface Module (IM) slots compatible with full ASR 900 IM portfolio for 1G/10G fiber, T1/E1/T3 and OC POS trunk circuits, integrated multi-layer precision timing subsystem (BITS, SyncE, IEEE 1588v2 PTP, 10MHz/1PPS/ToD), dual redundant hot-swappable AC/-48VDC power supplies and single redundant fan tray, modular Cisco IOS XE S operating system with full Carrier Ethernet EVPN/VPLS, MPLS L3VPN, SAToP/CESoP TDM pseudowire, hardware IPsec/MACsec acceleration and mobile transport QoS, rugged extended temperature range for DC variants (-40°C ~ +65°C), optimized for 4G/5G mobile pre-aggregation, small service provider remote POP, utility FAN substation aggregation and industrial IoT converged transport deploymentsCisco.

2. Complete Detailed Product Overview

Product Line Positioning

Cisco ASR 902U is the upgraded U-series enhanced variant of the standard ASR 902 chassis within the ASR 900 IOS XE mobile transport carrier router family. It shares the compact 2RU shallow ETSI 300mm rack footprint of the base ASR 902 but uses unified A900U-series RSP modules with higher maximum throughput (128 Gbps vs 60 Gbps on original ASR 902). It retains four IM expansion slots and single RSP architecture, focusing on mid-scale pre-aggregation sites requiring mixed TDM/Ethernet convergence, carrier-grade synchronous timing for cellular backhaul, and wide-temperature ruggedization for unmanned cell huts, roadside enclosures and rural utility substations. Unlike ASR 903U, it does not support dual redundant RSP control planes, balancing cost and performance for sites without full control-plane HA requirementsCisco.

Modular FRU Hardware Architecture

Single Hot-Swappable A900U-RSP2A Route Switch Processor Slot

Exclusive U-series RSP modules with integrated control CPU, forwarding ASIC, hardware crypto co-processor and full timing clock circuitry, two performance tiers available:

A900U-RSP2A-64: 4GB DDR3 ECC memory, 64 Gbps aggregate IMIX forwarding throughput
A900U-RSP2A-128: 4GB DDR3 ECC memory, maximum 128 Gbps aggregate IMIX forwarding throughput

All RSP variants support wire-speed offload for pseudowires, encryption, NAT and multicast replication; memory is fixed 4GB DDR3 without field upgrade options on ASR 902UCisco.

Four Hot-Swap Interface Module (IM) Slots (OIR Supported)

All IM slots support online insertion and removal without chassis power cycle, fully compatible with the complete ASR 900 IM portfolio for hybrid legacy TDM + modern fiber convergence:

Ethernet IMs: 8×1GE RJ45, 4×1GE SFP, 1×10GE SFP+ high-density fiber uplink modules
Channelized trunk IMs: 16×T1/E1, 4×T3 serial voice/signaling trunk modules
Optical IMs: OC-3 / OC-12 POS/ATM long-haul fiber transport modules

All IM ports support IEEE 802.1Q VLAN trunking, MACsec hardware encryption, SyncE clock recovery and hierarchical MQC QoS offload.

Integrated Multi-Standard Precision Timing Interfaces (Mandatory for Mobile Transport)

RJ45 BITS timing port for Stratum 3 carrier network clock synchronization
RJ45 ToD (Time of Day) port for GNSS GPS timing message distribution
Dual mini-coax connectors: 10 MHz reference clock + 1 PPS pulse input/output for external GPS receivers

Fully compliant with ITU-T G.8265.1 / G.8275.1 PTP telecom profiles, SyncE and TDM clock recovery to eliminate clock drift in synchronous 4G/5G fronthaul/backhaul transport networksCisco.

Management, Alarm & Auxiliary Interfaces

Dual-mode console access: RJ45 serial console + Mini-USB Type B port for local offline configuration
1×10/100/1000BASE-T isolated out-of-band management Ethernet port for separated remote monitoring
Dual USB 2.0 Type-A host ports for license import, offline configuration backup and firmware image upload
2-channel isolated dry-contact digital alarm I/O terminals for cabinet door sensors, environmental monitoring and external equipment fault alerting
Front-panel multi-color LED array monitoring RSP health, IM link status, power supply, fan tray, timing lock and critical/minor/major fault alarms.

Processor, Memory & Storage

A900U-RSP2A Integrated Forwarding ASIC: Fixed embedded data plane with licensed throughput tiers (64 Gbps / 128 Gbps), native hardware offload engines for SAToP/CESoP TDM pseudowires, IPsec/MACsec tunnel encryption, stateful NAT and multicast replication.
Control Plane Memory: Fixed 4GB ECC DDR3 memory on all supported RSP2A modules, optimized for thousands of mobile transport pseudowires and MPLS VPN tunnel instances.
Storage: 8GB rugged industrial eUSB onboard flash storage for IOS XE modular boot images, crash dumps and persistent system logging; no internal HDD/SSD expansion bay supported.

Power, Mechanical & Environmental Specifications

Form Factor: Standard 2RU 19-inch / ETSI shallow-depth rack-mount chassis, optimized for 300mm deep telecom equipment cabinets
Cooling: Single hot-swappable OIR fan tray with side-to-side airflow, supporting zero-downtime fan replacement without chassis power down
Power Supply Architecture: Dual hot-swappable wide-range AC (85–264VAC) / DC (-48VDC) power supplies for N+1 carrier-grade power redundancy
Operating Temperature:
- DC-powered SKUs: Continuous -40°C ~ +65°C for unmanned outdoor cell cabinets and remote industrial enclosures
- AC-powered SKUs: Continuous -5°C ~ +55°C indoor equipment rooms
Storage Temperature: -40°C ~ +70°C
Humidity: 10%–95% RH non-condensing operating humidity
Compliance: UL 62368-1, IEC/EN 60950-1, NEBS GR-1089 / GR-63, FCC Class A, CE certified for carrier central office, cell site and utility substation deploymentCisco.

Official Performance Benchmarks

Scalable aggregate IMIX forwarding throughput: 64 Gbps (RSP2A-64) / maximum 128 Gbps (RSP2A-128)
Hardware-accelerated IMIX IPsec VPN throughput: Max 12 Gbps
Maximum concurrent SAToP/CESoP TDM pseudowires: Up to 1,500 tunnels
Supported MPLS L2VPN/EVPN/VPLS service instances: Up to 3,000
Full hardware offload support for NBAR2 AVC deep packet inspection, hierarchical MQC QoS, MACsec link encryption and sub-second BFD fast convergence.

Software & Core Supported Capabilities (Modular IOS XE S)

Converged TDM + All-IP 4G/5G Mobile RAN Transport Suite

SAToP and CESoP pseudowire encapsulation for legacy T1/E1 circuit migration; full 3GPP-compliant IP backhaul transport for multi-generation BTS, NodeB and eNodeB radio traffic over fiber, microwave and DSL links.
Carrier-Grade MPLS & Carrier Ethernet Services

IPv4/IPv6 dual-stack forwarding, BGP, OSPF, IS-IS, BFD fast convergence; complete MPLS L3VPN, EVPN and VPLS feature stack for multi-tenant operator transport networks and enterprise private WANs.
Multi-Layer Precision Timing Stack for Synchronous Transport

Native SyncE, IEEE 1588v2 PTP grandmaster/slave, BITS, 10MHz/1PPS and ToD timing subsystems to eliminate clock drift required for cellular voice, data and control signaling.
Integrated Carrier-Grade Security Stack

Hardware-accelerated IPsec/MACsec tunnel encryption, next-generation stateful zone firewall, large-scale CGNAT address translation, AAA RADIUS/TACACS+, TLS encrypted remote management and IT/OT traffic segmentation for utility industrial convergence networks.
Hierarchical Mobile QoS & Traffic Visibility

NBAR2 full application classification, multi-level MQC traffic shaping/policing with strict priority queues for mobile voice and control signaling, IP SLA performance monitoring, NetFlow/IPFIX streaming telemetry for centralized transport network capacity planning.
Carrier-Grade High Availability Mechanisms

NSF Nonstop Forwarding, ISSU In-Service Software Upgrade for zero-downtime firmware updates, HSRP/VRRP gateway redundancy, sub-second BFD link failure detection, dual redundant power and fan architectures for unmanned remote sites.
Mass Automation & Programmability

CLI/SSH access, NETCONF/YANG data models, SNMP MIB support, native integration with Cisco IoT Field Network Director and NSO Network Services Orchestrator for large-scale cell-site zero-touch provisioning.

Typical Deployment Scenarios

4G LTE/5G mobile pre-aggregation RAN gateways, small service provider remote POP multi-tenant aggregation CPE, rural power grid utility substation FAN aggregation routers, solar/wind renewable energy remote monitoring hubs, compact Carrier Ethernet access aggregation for enterprise branch migration, microwave convergence nodes combining legacy TDM circuits and all-IP radio traffic, unmanned roadside ITS remote connectivity sites requiring shallow ETSI cabinet mounting and wide-temperature hardened hardware.

3. E-commerce Short Marketing Description

Cisco ASR 902U 2RU Shallow-Depth U-Series Modular Carrier Aggregation Services Router, single A900U-RSP2A FRU supporting scalable 64Gbps / 128Gbps throughput, fixed 4GB DDR3 ECC memory, four hot-swappable IM interface slots for 1G/10G fiber and T1/E1/T3/OC trunk modules, comprehensive BITS/PTP/SyncE multi-standard timing subsystem, dual redundant AC/-48VDC PSU & single OIR fan tray, DC variants support -40°C ~ +65°C rugged temperature range, modular IOS XE S OS with full Carrier Ethernet EVPN/VPLS, MPLS L3VPN, SAToP/CESoP TDM pseudowire and hardware IPsec acceleration, ideal for 4G/5G RAN pre-aggregation, small service provider POP and utility substation FAN transport deployments.

4. Product Catalog Keyword Tags

Cisco, ASR 902U, ASR 900U Series, 2RU Shallow ETSI Modular Carrier Aggregation Router, U-Series A900U-RSP2A Route Switch Processor, Scalable 64–128 Gbps Throughput, Four Hot-Swap IM Interface Slots, Integrated BITS / IEEE 1588v2 PTP / SyncE Timing, Dual Redundant AC/DC Power Supplies, OIR Hot-Swap Fan Tray, -40°C ~ +65°C Extended Rugged Temp (DC Models), NEBS GR-1089 Certified, IOS XE S Modular Operating System, Carrier Ethernet EVPN/VPLS, MPLS L3VPN Multi-Tenant Support, SAToP/CESoP TDM Pseudowire Transport, Hardware IPsec/MACsec Acceleration, 4G/5G Mobile Pre-Aggregation Gateway, Small Remote POP CPE, Utility Smart Grid FAN Aggregation Router

Naming Rule Explanation

ASR = Aggregation Services Router carrier-grade converged transport platform running IOS XE
902 = Compact 2RU shallow-depth modular carrier edge chassis (four IM slots, single RSP)
U = Unified upgraded U-series hardware platform (A900U-RSP2A exclusive RSP modules, higher max 128Gbps throughput vs standard ASR 902; compatible with ASR 903U RSP cross-migration)
No extra suffix = Base standard chassis without dual RSP redundancy (differentiated from dual-RSP ASR 903U 3RU six-slot model)


	© 2026 Kino Technology Limited. All Rights Reserved. \| Hong Kong Registered · Shenzhen Operation \| New & Genuine Used Network Equipment Supplier